Historical Data

Historical data is a record of information at past points in time, preserved for retrospective analysis, trend detection, forecasting, and model training. Unlike live data, historical data captures the state of something - a price, a market, a listing - at a specific past date or over a time range.

In real estate, historical data includes sold transaction records, rental prices over time, and listing price changes for properties. In retail, it covers price evolution, seasonal patterns, and historical availability. In finance, it includes daily price series for securities going back years.

Access to historical data is a competitive advantage. Building it yourself by polling an API over time is one approach; purchasing a pre-built historical dataset is faster and more complete - especially for data that predates your integration going live.